Inking device for printing and embossing machines



Aug. 14, 1928.

w. c. FELLOWS INKING DEVICE FOR PRINTING AND EMBOSSING MACHINES Filed Dec. 11. 1926 2 Sheets-Sheet Aug. 14, 1928.

w. FELLOWS INKING DEVICE FOR PRINTING AND EMEOSSING MACHINES eta-Sheet lnven/or I I a/fer C fW/ Filed Dec. 11, 1926 Patented Aug; 14, 1928.

UNITED. STATES PATE WALTER c. rELLows, OIPHILADELPHIA, PENNSYLVANIA; AssIG oR TO 0. R. CARVER i COMPANY, A CORPORATION OF PENNSYLVANIA.

1,680,530 NT O-FF ICE,

INKING DEVICE FOR PRINTING AND EMBOSSING MACHI1VES.-

Application filed December 11, 1926. Serial No. 154,085

My invention relates to the manner of supporting and moving the inking roller in a plate printing and embossing press for transferring ink from the ink fountain to the die or plate, andthe object of my invention is to so support the inking roller that it may be easy of access and readily removed or repositioned and Without interfering with access to other parts of the machine such as the feeding and winding of the wiping web.

A further object of my invention is to so support the shaft of the inking roller that it may be readily adjusted radially withrespect to the axis about which it is made to travel to insure proper co-action with the roller of the ink fountain and the printing plate or die. 7 1 j i lVith theabove and other objects in View, the nature of which will be more fully understood from the description hereinafter, the invention consists in the novel construction of inking devices for printing and embossing presses, as hereinafter more fully described and defined in the claims.

Referring to the drawings: Fig. 1 is a side elevation, of a portion of a printing'andembossing press with my improvements applied thereto; Fig. 2 is a rear view of the. printing roll and its supporting and operating means embodyin my improvements; Fig. 3 is a side view of'one of the arms in which the inking rolleris detachably journalledr Fig. 4 is a cross sectional view taken on line 4-4 of Fig. 3; F igf5 isa vertical sectional view taken on line 55 of Fig. 2; F ig. 6 is a transverse sectional View on line 66 of Fig. 5; and Fig. 7 is a. transverse sectional view online 7-7 of F ig. 5. a

Referring to Fig. 1, 2 is apart of the main frame of the machine. 3 is the sliding carriage carrying the diegchuck which holds the die 4 and also carries the shoes 5 for guiding the rollers 6 on the shaft 7 of the inking roller 8 whereby the inking roller is made to properly contact with the die when applying ink thereto. 9 is the vertical reciprocating plunger which is usually'fitted with a counter-block for cooperating with. the die 4 on the sliding carriage 3, when the latter is reciprocated from the position shownin solid lines to the position shown in dotted lines by means of the rocker arm 10, intermediate link 11 and tram shaft link 12, the latter being parts] of. the commercial printing presses already on the market.

Arranged about these shanks 19 The inking roller has its shaft 7 j ournalled in the lower parts of two arms 13 which are adjust-ably clamped to a rockshaft- 14 by the hubs and gripping means 15, whereby the said arms may be adjusted relatively to or from each other and also circiunferentially in respect to the shaft. The lower and free ends of the arms 13 are provided with screw threaded socket-s 16 arranged respectively on adjacent sides of the two arms 18 and preferably somewhat obliquely to a radial line between the axis of the shaft 14 and the shaft 7 of'the inking roller 8, the purpose of which will be later referred to.

The screw threadedsockets 16 are respectively provided with hollow adjustable nuts 17 which are adjustable longitudinally in the sockets and constitute adjustable bushings therefor. Arranged and guided within the bushings 17 are stems 18 formed with upper shanks 19 extending through the top of the nuts and provided thereat with nuts 20 which limittheir downward movement, and within the-chamber 21 of the bushings 17 are coil springsl22, said springs normally holding the stems 18 in their most downward positions such that the nuts 20 rest against the upper gaces of the bushings 17,.as clearly shown inig. 5. i I Secured to the lower end of the stems 18 are heads 23 having bearing sockets 24 for receiving the respective ends of the inking roller shaft 7, the said shaft being locked in the bearings by means of thevholding pins 25 which are spring pressed intolocking position by sip-rings 26.. To insure the heads 23 of the two arms maintaining properalinement said heads .maybe provided with" aligning pins 23 parallel to the stems 18 and sliding through holes 16 in the socket portions 16; The alinementmay be insured by other means, though theconstruct-ion shown is found to be most effective in practice and simple in construction. f

' The upperends of the holding pins 25 are provided with knobs 27, said knobs 27 being furnished with downwardly extending pins 28 normally received in recesses29, but which, when the knobs are lifted-and rotated, will rest upon the upper surface of the heads 23 to hold the holding pins in their elevated positions and thus release the inking roller from its bearing sockets 24. These sockets are preferably open to the rear so that when til) ' the inking rolls,

the arms 13 swing backwardly to bring the inking roller in contact with the fountain rolls, the shaft 7 will be journalled in the curvedportions of the sockets'cons'tituting the bearings the armsare moved forward to the position shown in Fig. 1, (solid lines) and the earriage with the die block is being moved forward to assume the dotted position, the action thereof is also to force the shaft 7 of the inking roller 8 against the curved bearing portions of the sockets 24 and thereby insure more perfect operation. In other words, when the real pressure is applied to it is received by the curved bearing portion of the sockets and not by the holding pins 25 l The adjustment ofthe roller 8 in a radial direction with respect tothe shaft 14 is provided by the screw threaded bushings 17 by reason of their screw adjustments in the sockets 16 and the retaining of the positions of adjustment is insured by the spring actuated detents 30 engaging the tooth shaped perimeters 31 of noted that while the adjustable bushing 17 provides for the'normal adjustment of the inking roller 8- in a radial direction, the roller is at alltimes supportcd in a yielding manner, that is tosay, that while its outward adjustment is definitely limited, nevertheless, the stems 18 being cushioned upon the springs 21 provide capacity for the inking roller 8 to yieldingly move upward the radial distance from the axis of the shaft 141:0 the axis of the inking roller 8 is temporarily reduced to some extent. The purpose'ofthis is to enable the'inking roller 8 to automatically of the die 4 to be inked and then to permit the two ends of the roller: to. be yieldingly adjustedto slightly different degrees, if necessary; this latter function being possible in view of the fact that the spring supported bearings for the inking roller axle on the two arms 13 are entirely independent. This'ca pacity foryielding adjustment of the inking roller Smay also be availed of in its cooperation with the ink roll and distributor of the ink fountain 33, but the adjustment is designed more particularly for the proper cooperation with the die4 to be inked during the printing operation.

As shown, the carriage and die chuck 3 is provided with cam shoes 5 in contact with which the idler rollers 6 on the inking roller shaft properly guide the inking roller into postion for applying ink to the die and also forguiding the ink roller when it has passed slightly beyond the die (Fig. 1). whereby the composition ink roller 8 is protected against injury by too severe contact with the [die chuck and die. Furthermore, thecomposi tion or ink applying portion of. the inking roller 8 is of less length tlian'the distance for said shaft. Similarly, when i p for operating the the nuts 17. It will be whereby adjust itself to the surface bushing 17, stems l8 and'heads 23,

automatic yielding said arms and above the inking roller is entirely clear of obstructions. In machines of this character, commonly known as stamping and embossing presses, the ink die is carried forward'u'nder the wiping pad when the carriage 3 'is being moved forward to its position under the plunger 9 where the printing or embossingis actually done:

By reference to Fig. there are no transverse bars'or tionsbetween the two arms 13 which in any manner ohstruct access to the inking roller or which to any'degree interfere with the in scrtion and removal of' the inking ,roller when necessary. Furthermore, the means holding pins 25 and the carried by the arms located in f positions to'access, not only but to the wiping bushing 17 are wholly 13 and are, therefore, which are least obstructive to the inking mechanism means and others of the more or less comof printing and embossing plicated elements machines of the character to which these improvements relate.' It will be noted alsothat the bushing 17 with its connected parts-and the head23 are all out of alinement with the arm 13, it being laterally disposed to the general plane of the arm, and in the cases of the two arms, these parts are disposed at opposite sides of the arms so as to constitute right and left handed supports for the inking roller. Furthermore, the hubs and clamping means 15 of thearms13 extend alon the rockshaftH to provide a support for tie arms 13 which extend above the vertical planes through the so as to avoid undue strain during the operation of the machine. i i o It will now be apparent that I have devised a novel and'useful construction which embodies the features of advantage enumerated as desirable,and whileI have in the present instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, is to be understood that I do not restrict myself to the details, as the same are susceptible of modification in various particulars without departing from the spirit or scope of the invention.

Having now described my invention, what I claim and desire to secure by Letters Patent is: j

1. In a printing press, an ink fountain, a printing die, means for shiftingthe latter into and out of ink receiving position, and

an inking roller for transferring ink from devices 32 the fountain to the printing die, combined with means for operating the inking roller consisting of a rockshaft, two arms extending therefrom in the same direction and spaced apart a greater distance than the length of the inking roller and each provided with supporting means for the inking roller including an adjustable part screw threaded into the lower part of the arms, a spring actuated stein therefor restricted as to its movement in one direction While being yieldingly supported in the other direct on, and a head secured to the stem and forming a bearing support for a shaft carrying the inking roller, whereby the inking roller is limited in its movement away from the rock- 'shaft while being yieldingly movable in a direction toward the rockshaft.

2. The invention according to claim 1, wherein further, the adjustable screw threaded part and spring actuated stem are arranged on the arms in positions intermediate of said arms and the inking roller, and means are provided'for mechanically retaining the adjustable parts in their various positions of adj ustment.

The invention according to claim 1, wherein further, the head providing the bearing for the inking roller shaft is formed with a slotted bearing, and a spring actuated holding pin for holding the shaft of the inking roller in the bearing while permitting quick release, said holding pin provided with means for retaining it in releasing position.

4. The invention according to claim 1, wherein further, the head providing the bearing for the inking roller shaft is formed with a slotted bearing, and a spring actuated holding pin for holding the shaft of the inking roller in the bearing while permitting quick release, said holding pin provided with means for retaining it in releasing position and circular in cross section so that it is capable of rotation during adjustment to retaining position, and the means for holding it in releasing position comprising a knob having a downwardly extending pin which when raised and turned engages the head and holds the pin in its elevated releasing position. i

5. The invention according to claim 1,

wherein further, the adjustable screw thread ed parts are in the form of bushings screwed into lateral portions at the lower parts of the arms, and wherein the stems to which the heads are attached are reciprocable' lengthwise of the adjustable bushings and provided at the top with obstructions to limit the downward adjustments of the stems, and coil springs surrounding the stems and enclosed within the adjustable bushings for holding the heads in their maximum downward positions relatively to the bushings while yieldingly supportingthem into and out of ink receiving against upward movement, and wherein further, the bushings are capable of being rotated for adjustment of the heads relatively to the rockshaft. I

6. The invention according to claim 1, wherein each of the heads are provided with aligning pins for permitting their movement to or from the rockshaft while holding them against rotation on the arms, and wherein further, the connection at the bushings to the heads on the one part and the arms on the other part permit of rotation of the bushings for adjusting the head, and retaining means are provided for holding the bushings in various positions of adjustment.

7. The invention according to claim 1,

wherein the stem and head is supported by the adjustable bushing while held thereto against adjustment in a downward direction but yieldingly supported in an upward direction and said bushing rotatable in respect to the stem and head for adjusting the same in an upward and downward direction relatively to the arm and rockshaft. 8. In a printing press, an ink fountain, a printing die, means for shifting the latter position, and an inking roller for transferring ink from the fountain to the printing die, combined with a rockshaft, two downwardly extending arms secured to the rockshaft and each provided with a laterally arranged screw threaded socket, said socket portions occupying positions intermediate the inking roller, journal bearings for the ends of the inking roller Shaft-,Ztlld adjustable means for the journal bearings screwed into the screw threaded sockets of the arms whereby the inking roller may be adjusted toward or from the rockshaft, and said means limiting the outward movement of the journal bearings while yieldingly supporting the same in an'inward direction.

i). In a printing press, an ink fountain, a printing die, means for shifting the latter into and out of ink receiving position, and an inking roller for transferring ink from the fountain to the printing die, combined with a rockshaft, two parallel arms secured to the rockshaft and having their lower portions formed with laterally projecting means relatively arranged at a distance apart greater than the length of the ink applying portion of the inking roller, and yieldingly supporting means for the inking roller adjustably secured in the lateral extensions of the parallel arms, whereby the space above the inking roller is entirely clear of obstructions and the roller is yieldingly supported while being free to be oscillated by the rockshaft and arms,-

In testimony of which i nvention, I hereunto set my hand.

WVALTER C. F ELLOWVS.

of the arms and 

